package com.hmdp.utils;

import cn.hutool.core.bean.BeanUtil;
import com.hmdp.dto.UserDTO;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@Component
public class RefreshTokenInterceptor implements HandlerInterceptor {



    private final StringRedisTemplate stringRedisTemplate;

    public RefreshTokenInterceptor(StringRedisTemplate stringRedisTemplate) {
        this.stringRedisTemplate = stringRedisTemplate;
    }


    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        String token = request.getHeader("authorization");
        if (token==null){
            return true;
        }
        Map<Object,Object> userMap = stringRedisTemplate.opsForHash().entries(RedisConstants.LOGIN_USER_KEY + token);
        if (userMap.isEmpty()){
            return true;
        }
        UserDTO userDTO = BeanUtil.fillBeanWithMap(userMap, new UserDTO(), false);
        UserHolder.saveUser(userDTO);
        stringRedisTemplate.expire(RedisConstants.LOGIN_USER_KEY + token, RedisConstants.LOGIN_USER_TTL, TimeUnit.MINUTES);
        return true;
    }

}
